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855808010540 = 225752118716271
BaseRepresentation
bin11000111010000100010…
…00011110100100101100
310000210222201202102020222
430131002020132210230
5103010143322314130
61453052555430512
7115554502031060
oct14350210364454
93023881672228
10855808010540
112aaa4534705a
12119a40455438
13629190a4012
142d5c81a9aa0
15173dc9e8ce5
hexc74221e92c

855808010540 has 96 divisors (see below), whose sum is σ = 2059309744128. Its totient is φ = 292653504000.

The previous prime is 855808010471. The next prime is 855808010579. The reversal of 855808010540 is 45010808558.

It is a junction number, because it is equal to n+sod(n) for n = 855808010491 and 855808010500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136467605 + ... + 136473875.

It is an arithmetic number, because the mean of its divisors is an integer number (21451143168).

Almost surely, 2855808010540 is an apocalyptic number.

It is an amenable number.

855808010540 is an abundant number, since it is smaller than the sum of its proper divisors (1203501733588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

855808010540 is a wasteful number, since it uses less digits than its factorization.

855808010540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8679 (or 8677 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 44.

The spelling of 855808010540 in words is "eight hundred fifty-five billion, eight hundred eight million, ten thousand, five hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 521 1042 1871 2084 2605 3647 3742 5210 6271 7294 7484 9355 10420 12542 13097 14588 18235 18710 25084 26194 31355 36470 37420 43897 52388 62710 65485 72940 87794 125420 130970 175588 219485 261940 438970 877940 974791 1949582 3267191 3899164 4873955 6534382 6823537 9747910 11733041 13068764 13647074 16335955 19495820 22870337 23466082 27294148 32671910 34117685 45740674 46932164 58665205 65343820 68235370 82131287 91481348 114351685 117330410 136470740 164262574 228703370 234660820 328525148 410656435 457406740 821312870 1642625740 6112914361 12225828722 24451657444 30564571805 42790400527 61129143610 85580801054 122258287220 171161602108 213952002635 427904005270 855808010540